Abstract:
:Natural products play a pivotal role in medicine especially in the cancer arena. Many drugs that are currently used in cancer chemotherapy originated from or were inspired by nature. Jerantinine B (JB) is one of seven novel Aspidosperma indole alkaloids isolated from the leaf extract of Tabernaemontana corymbosa. Preliminary antiproliferative assays revealed that JB and JB acetate significantly inhibited growth and colony formation, accompanied by time- and dose-dependent apoptosis induction in human cancer cell lines. JB significantly arrested cells at the G2/M cell cycle phase, potently inhibiting tubulin polymerisation. Polo-like kinase 1 (PLK1; an early trigger for the G2/M transition) was also dose-dependently inhibited by JB (IC50 1.5 µM). Furthermore, JB provoked significant increases in reactive oxygen species (ROS). Annexin V+ cell populations, dose-dependent accumulation of cleaved-PARP and caspase 3/7 activation, and reduced Bcl-2 and Mcl-1 expression confirm apoptosis induction. Preclinical in silico biopharmaceutical assessment of JB calculated rapid absorption and bioavailability >70%. Doses of 8-16 mg/kg JB were predicted to maintain unbound plasma concentrations >GI50 values in mice during efficacy studies. These findings advocate continued development of JB as a potential chemotherapeutic agent.
journal_name
Cancer Lettjournal_title
Cancer lettersauthors
Qazzaz ME,Raja VJ,Lim KH,Kam TS,Lee JB,Gershkovich P,Bradshaw TDdoi
10.1016/j.canlet.2015.10.013subject
Has Abstractpub_date
2016-01-28 00:00:00pages
185-97issue
2eissn
0304-3835issn
1872-7980pii
S0304-3835(15)00644-8journal_volume
370pub_type
杂志文章相关文献
CANCER LETTERS文献大全abstract::The identification of the breast cancer susceptibility genes BRCA1 and BRCA2 a few years ago has been greeted with great excitement and has raised hopes that they might illuminate the common mechanisms of this disease. Today we have to recognize that these expectations remain unfulfilled. Mutations in BRCA1 and BRCA2 ...
journal_title:Cancer letters
pub_type: 杂志文章,评审
doi:10.1016/s0304-3835(01)00752-2
更新日期:2002-01-10 00:00:00
abstract::Neuroblastoma is the most common extra-cranial solid tumor in children. Despite advances in the treatment of childhood cancer, outcomes for children with advanced-stage neuroblastoma remain poor. Here we reported that 2-methoxyestradiol (2-ME) inhibited the proliferation and induced apoptosis in human neuroblastoma SK...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2011.09.005
更新日期:2011-12-27 00:00:00
abstract::Autophagy is a membrane process that results in the transporting of cellular contents to lysosomes for degradation. Autophagic cell death is another way of programed cell death called type II PCD, which has complicated connection with apoptosis, both of these two types of cell death play an important role in tumor dev...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2009.06.039
更新日期:2010-02-01 00:00:00
abstract::Based on the primer binding site for Phe-tRNA, human endogenous retroviruses (HERVs) have been classified as HERV-F family members, HERV-F, HERV-FXA, HERV-Fb, and HERV-Fc. The HERV-F family was expressed in human placenta preferentially. We investigated pol fragments of HERV-F family in various human tissues and cance...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2004.01.026
更新日期:2004-07-28 00:00:00
abstract::Endostatin has been demonstrated to represent a promising novel medicine to treat malignant tumors, and it may be more effective when combined with conventional treatment. Meanwhile, a promising area of research in radiation oncology is the integration of molecular targeting agents to improve the effectiveness of radi...
journal_title:Cancer letters
pub_type: 杂志文章,评审
doi:10.1016/j.canlet.2008.12.008
更新日期:2009-09-08 00:00:00
abstract::Chloroform is a liver carcinogen in mice and a kidney carcinogen in rats. It is thought to act through a non-genotoxic-cytotoxic mode of action. Changes in expression of growth control genes accompanying chloroform-induced cytolethality and regeneration may play a part in the development of chloroform-induced tumors. ...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/0304-3835(96)04123-7
更新日期:1996-03-19 00:00:00
abstract::Alteration of the p16 tumor suppressor gene has been implicated as a critical lesion in the molecular pathogenesis of esophageal adenocarcinoma. The aim of this study was to characterize the spectrum of p16 alterations in surgically resected esophageal tissues, comprising histologically normal esophageal squamous and ...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2004.06.025
更新日期:2005-01-20 00:00:00
abstract::The promoting potential of oxymetholone (OXM) administration on development of liver cell foci was investigated in male F344 rats previously treated with N-diethylnitrosamine (DEN). One week after a single injection of DEN (100 mg/kg, i.p.), rats were given OXM at a dietary level of 0.2% for the first 4 weeks and then...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/0304-3835(90)90153-o
更新日期:1990-02-01 00:00:00
abstract::Fanconi Anemia has recently been associated with a high risk of head and neck squamous cell carcinoma (HNSCC). Inactivation of the Fanconi Anemia (FANC-BRCA) pathway via promoter methylation of the FANCF gene has been proposed to be responsible for variation in cisplatinum (CDDP) sensitivity seen in ovarian and HNSCCs...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2005.12.028
更新日期:2007-01-08 00:00:00
abstract::Cancer stem cells (CSC) are critical for initiation, metastasis, and relapse of cancers, however, the underlying mechanism governing stemness of CSC remains unknown. Herein, we have investigated the roles of phosphodiesterase 5 (PDE5) in stemness of prostate cancer cells. Both PDE5 and WW domain-containing transcripti...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2016.05.010
更新日期:2016-08-01 00:00:00
abstract::Acute myeloid leukemia (AML) cells in vivo are constantly exposed to lymphangiogenic cytokines such as VEGF-C. However, it is poorly understood how the VEGF-C signaling modulates the immune functions in the tumor microenvironment. We have previously reported that natural killer (NK) cells in AML patients strongly upre...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2014.08.027
更新日期:2014-11-28 00:00:00
abstract::Human mitogen-stimulated lymphocytes, cultured in the presence of amosite asbestos (AS), demonstrated a slight increase in aryl hydrocarbon hydroxylase (AHH) activity compared with non-induced (control) cultures (P = 0.005). A much greater increase in enzyme activity occurred following addition of the inducers benzant...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/s0304-3835(79)80113-5
更新日期:1979-07-01 00:00:00
abstract::The susceptibility of analbuminemic rats, a mutant strain of Sprague-Dawley rats, to bladder carcinogens was examined by testing the agglutinability of isolated bladder epithelial cells by Concanavalin A (Con A). One-week treatment with 0.001% N-butyl-N-(4-hydroxybutyl)nitrosamine (BHBN) in the drinking water or 0.01%...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/0304-3835(83)90128-3
更新日期:1983-05-01 00:00:00
abstract::Sulfasalazine (SSZ) is an anti-inflammatory drug that has been demonstrated to induce apoptosis and tumor regression through inhibition of plasma membrane cystine transporter xc(-). Cysteine is a rate-limiting precursor for intracellular glutathione (GSH) synthesis, which is vital for compound detoxification and maint...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2015.07.031
更新日期:2015-11-01 00:00:00
abstract::We conducted a pilot study to assess the feasibility using the Electoral Register to carry out a cervical cancer screening programme on a Health District basis. A random sample of 500 names and addresses were drawn from a computerised list of the Electoral Register from three Electoral Wards in Oxford. A pilot study s...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/0304-3835(85)90039-4
更新日期:1985-09-30 00:00:00
abstract::Pancreatic cancer cells are usually resistant to apoptosis mediated by tumor necrosis factor (TNF)-alpha or FasL, and their toxicity towards normal cells hampers their application for therapeutic use. TNF-related apoptosis-inducing ligand (TRAIL), a novel member of the TNF family, triggers apoptosis in a variety of ma...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/s0304-3835(00)00660-1
更新日期:2001-02-10 00:00:00
abstract::Mutation of the p53 gene has been reported in hepatocellular carcinoma (HCC) occurring worldwide. The most frequent p53 mutation has been found in HCCs in regions with high hepatitis B virus (HBV) infection and intake of aflatoxin B1 (AFB1). The aim of our study was to examine p53 protein expression in HCCs from a hig...
journal_title:Cancer letters
pub_type: 临床试验,杂志文章
doi:10.1016/s0304-3835(97)00352-2
更新日期:1997-12-23 00:00:00
abstract::The appearance of apoptosis has been used as an index of carcinogen-induced damage incurred by the intestinal epithelium. Here we report that the cytotoxic response elicited by gamma radiation in the duodenal and colonic epithelium of the mouse is markedly affected by the time of day at which the animals are irradiate...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/0304-3835(83)90203-3
更新日期:1983-12-01 00:00:00
abstract::Oral squamous cell carcinoma (OSCC) is a characteristic locally aggressive tumor in which hypoxia levels are very high, causing a low response to chemotherapy and providing basic resistance to anticancer drugs. Tumoral hypoxia directly depends on hypoxia-inducible factors (HIF). The goal of this paper is to describe H...
journal_title:Cancer letters
pub_type: 杂志文章,评审
doi:10.1016/j.canlet.2011.08.017
更新日期:2011-12-26 00:00:00
abstract::Matrix metalloproteinases (MMPs) are an homologous family of proteolytic enzymes capable of degrading components of the extracellular matrix (ECM) and thereby facilitating the invasion of tumour cells into normal tissues. The neural cell adhesion molecules (NCAMs) of neuronal and glial cells provide a Ca2+-independent...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/s0304-3835(97)00171-7
更新日期:1997-06-03 00:00:00
abstract::Cetuximab inhibits HIF-1-regulated glycolysis in cancer cells, thereby reversing the Warburg effect and leading to inhibition of cancer cell metabolism. AMP-activated protein kinase (AMPK) is activated after cetuximab treatment, and a sustained AMPK activity is a mechanism contributing to cetuximab resistance. Here, w...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2016.09.020
更新日期:2017-01-01 00:00:00
abstract::These studies examined the impact of dietary corn oil and its major constituent fatty acids on the occurrence of 7,12-dimethylbenz[a]anthracene (DMBA)-induced mammary DNA adducts. In study 1, rats were fed diets containing 5, 10 or 20% corn oil for 2 weeks prior to DMBA treatment (25 mg/kg). Mammary DNA adducts increa...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/0304-3835(96)04323-6
更新日期:1996-09-10 00:00:00
abstract::Twenty-seven patients with malignant teratoma, 19 of which received radiation, are presented and the radiation response analyzed. Radiotherapy seems most effective in the palliation of undifferentiated (embryonal) teratoma of the gonads and sacrococcygeal region in early childhood. It is less effective, yet useful, in...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/s0304-3835(75)95697-9
更新日期:1975-11-01 00:00:00
abstract::Transforming growth factors (TGFs) are implicated in malignancy, therefore qualitative and quantitative differences of these growth factors in chronic myelogenous leukemia (CML) in chronic phase has been investigated in this report. Induction of anchorage independent growth of BALB/c 3T3 and NRK-49F fibroblasts was us...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/0304-3835(86)90181-3
更新日期:1986-09-01 00:00:00
abstract::Chronic myeloproliferative disorders (CMPD) are clonal disorders of the hematopoietic stem cell. The myeloid lineage shows increased proliferation with effective maturation, while peripheral leukocytosis, thrombocytosis or elevated red blood cell mass are found. In Philadelphia negative CMPD recurrent cytogenetic abno...
journal_title:Cancer letters
pub_type: 杂志文章,评审
doi:10.1016/j.canlet.2007.02.009
更新日期:2007-09-18 00:00:00
abstract::Gastrin-releasing peptide (GRP) activates phosphatidylinositol 3-kinase (PI3-K)/Akt, an important cell survival signaling pathway, to stimulate growth of various cell types. Transforming growth factor (TGF) superfamily ligands activate intracellular Smad signaling to regulate cell growth, differentiation and apoptosis...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2005.11.007
更新日期:2006-10-28 00:00:00
abstract::We have examined the effect of theanine, a specific amino acid in green tea, on idarubicin (IDA)-induced antitumor activity and toxicity. In combination with theanine, IDA (0.25 mg/kg per day x4 days, a dose that does not show antitumor activity) had significant antitumor activity in P388-bearing mice. The IDA concent...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/s0304-3835(00)00491-2
更新日期:2000-10-01 00:00:00
abstract::Costunolide (CT), a sesquiterpene lactone constituent isolated from Saussurea lappa (Compositae), exerted an antiangiogenic effect. CT selectively inhibited the endothelial cell proliferation induced by vascular endothelial growth factor (VEGF). Further, CT was also found to inhibit the VEGF-induced chemotaxis of huma...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/s0304-3835(02)00361-0
更新日期:2002-12-10 00:00:00
abstract::The carcinogenic effect of ultraviolet radiation (UVR) on the skin of hairless (hr) mice was modified by two immunosuppressive agents, rabbit anti-mouse lymphocytic serum (ALS), and 6-mercaptopurine (6MP). Daily exposure of mice to UVR resulted in multiple tumor production. Carcinogenesis was measured in terms of affe...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/s0304-3835(75)97305-x
更新日期:1976-05-01 00:00:00
abstract::Tumor-associated macrophages (TAMs) are important immunocytes associated with cancer metastasis. However, whether TAMs play a dominant role in mediating CXCL12/CXCR4-induced liver metastasis of colorectal cancer (CRC) remains unexplored. Herein, we found that CD206+ TAMs, which infiltrated at the invasive front, were ...
journal_title:Cancer letters
pub_type: 杂志文章
doi:10.1016/j.canlet.2020.01.005
更新日期:2020-04-01 00:00:00